We've discussed when people plan to see The Avengers (here), but we haven't discussed the movie itself! So let's rectify that!   I went last night to a midnight 3-D showing, so I'll go first. Thus, I can't use my usual disclaimer that I'll post without reading what everyone else has posted, but what the hey.   To begin: I loved it. I loved everything about it. And so did the audience; I haven't…